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Proceedings Paper

Studying brain function with near-infrared spectroscopy concurrently with electroencephalography
Author(s): Y. Tong; E. J. Rooney; P. R. Bergethon; J. M. Martin; A. Sassaroli; B. L. Ehrenberg; Vo Van Toi; P. Aggarwal; N. Ambady; S. Fantini
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Paper Abstract

Near-infrared spectroscopy (NIRS) has been used for functional brain imaging by employing properly designed source-detector matrices. We demonstrate that by embedding a NIRS source-detector matrix within an electroencephalography (EEG) standard multi-channel cap, we can perform functional brain mapping of hemodynamic response and neuronal response simultaneously. In this study, the P300 endogenous evoked response was generated in human subjects using an auditory odd-ball paradigm while concurrently monitoring the hemodynamic response both spatially and temporally with NIRS. The electrical measurements showed the localization of evoked potential P300, which appeared around 320 ms after the odd-ball stimulus. The NIRS measurements demonstrate a hemodynamic change in the fronto-temporal cortex a few seconds after the appearance of P300.

Paper Details

Date Published: 28 April 2005
PDF: 6 pages
Proc. SPIE 5693, Optical Tomography and Spectroscopy of Tissue VI, (28 April 2005); doi: 10.1117/12.587662
Show Author Affiliations
Y. Tong, Tufts Univ. (United States)
E. J. Rooney, Tufts New England Medical Ctr. (United States)
P. R. Bergethon, Tufts New England Medical Ctr. (United States)
J. M. Martin, Tufts Univ. (United States)
A. Sassaroli, Tufts Univ. (United States)
B. L. Ehrenberg, Tufts Univ. (United States)
Vo Van Toi, Tufts Univ. (United States)
P. Aggarwal, Boston Univ. (United States)
N. Ambady, Tufts Univ. (United States)
S. Fantini, Tufts Univ. (United States)

Published in SPIE Proceedings Vol. 5693:
Optical Tomography and Spectroscopy of Tissue VI
Britton Chance; Robert R. Alfano; Bruce J. Tromberg; Mamoru Tamura; Eva M. Sevick-Muraca, Editor(s)

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